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MÉTODO DE FABRICO DE UMA LENTE INTRAOCULAR AFÁQUICA
专利权人:
CARL ZEISS MEDITEC AG
发明人:
ATSUSHI KOBAYASHI,HIROAKI SUZUKI,ICHIRO ANDO
申请号:
PT09837427
公开号:
PT2377493E
申请日:
2009.04.08
申请国别(地区):
PT
年份:
2015
代理人:
摘要:
Provided is a novel method of manufacturing an aphakic intraocular lens (10) that is capable of ensuring every multi-focusing effect more securely, while reducing the impact of aperture changes and lens eccentricity. At least two reliefs (26, 28) whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of the lens (10), and with respect to every grating pitches of one relief (28) having a maximum grating pitch among the reliefs (26, 28) set up in overlap, grating pitches of another relief (26) are overlapped periodically in order to obtain a relief pattern (24), so that the resulting relief pattern (24) is formed on a lens surface (16).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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